GNUdap is a project to build a userspace driver to
interface Linux with proprietary-protocol USB MP3
players and mass storage devices. Currently,
GNUdap supports only the "Perstel,Inc. CHIC MP10".
GNUdap is also an experiment to test the
advantages of a strongly-typed programming
language and of the functional programming
paradigm in hardware development. GNUdap currently supports all features supported by the official program provided with the Chic, and has some additional features, like being able to transfer
MP3s directly to the PC.